Page 95
T
5CL8
9.3 Function
The timer/counter 2 has three operating modes: timer, event counter and window modes.
And if fc or fs is selected as the source clock in timer mode, when switching the timer mode from SLOW1 to
NORMAL2, the timer/counter2 can generate warm-up time until the oscillator is stable.
9.3.1 Timer mode
In this mode, the internal clock is used for counting up. The contents of TC2DR are compared with the con-
tents of up counter. If a match is found, a timer/counter 2 interrupt (INTTC2) is generated, and the counter is
cleared. Counting up is resumed after the counter is cleared.
When fc is selected for source clock at SLOW2 mode, lower 11-bits of TC2DR are ignored and generated a
interrupt by matching upper 5-bits only. Though, in this situation, it is necessary to set TC2DRH only.
Note:When fc is selected as the source clock in timer mode, it is used at warm-up for switching from SLOW1 mode
to NORMAL2 mode.
Table 9-1 Source Clock (Internal clock) for Timer/Counter2 (at fc = 16 MHz, DV7CK=0)
TC2C
K
NORMAL1/2, IDLE1/2 mode
SLOW1/2 mode
SLEEP1/2 mode
DV7CK = 0
DV7CK = 1
Resolution
Maximum Time Set-
ting
Resolution
Maximum Time Set-
ting
Resolu-
tion
Maxi-
mum
Time
Setting
Resolu-
tion
Maxi-
mum
Time
Setting
000
524.29 [ms]
9.54 [h]
1 [s]
18.2 [h]
1 [s]
18.2 [h]
1 [s]
18.2 [h]
001
512.0 [ms]
33.55 [s]
0.98 [ms]
1.07 [min]
0.98 [ms]
1.07
[min]
0.98 [ms]
1.07
[min]
010
16.0 [ms]
1.05 [s]
16.0 [ms]
1.05 [s]
–
–
–
–
011
0.5 [ms]
32.77 [ms]
0.5 [ms]
32.77 [ms]
–
–
–
–
100
–
–
–
–
62.5 [ns]
–
–
–
101
30.52 [ms]
2 [s]
30.52 [ms]
2 [s]
–
–
–
–
Example :Sets the timer mode with source clock fc/2
3
[Hz] and generates an interrupt every 25 ms (at fc = 16 MHz )
LDW
(TC2DR), 061AH
; Sets TC2DR (25 ms ³ 2
8
/fc = 061AH)
DI
; IMF= “0”
SET
(EIRE). 6
; Enables INTTC2 interrupt
EI
; IMF= “1”
LD
(TC2CR), 00001000B
; Source clock / mode select
LD
(TC2CR), 00101000B
; Starts Timer
Содержание CEM2100/00
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Страница 13: ...PCB LAYOUT PANEL BOARD TOP SIDE VIEW ...
Страница 14: ...14 PCB LAYOUT PANEL BOARD BOTTOM SIDE VIEW ...
Страница 15: ...PCB LAYOUT REMOTE BOARD TOP SIDE VIEW 15 ...
Страница 16: ...PCB LAYOUT REMOTE BOARD BOTTOM SIDE VIEW 16 ...
Страница 17: ...PCB LAYOUT TUNER BOARD TOP SIDE VIEW 17 ...
Страница 18: ...PCB LAYOUT TUNER BOARD BOTTOM SIDE VIEW 18 ...
Страница 19: ...PCB LAYOUT SD BOARD TOP SIDE VIEW ...
Страница 20: ...20 PCB LAYOUT CD CONNECTOR TOP SIDE VIEW ...
Страница 21: ...PCB LAYOUT ISO BOARD BOTTOM SIDE VIEW 21 ...
Страница 22: ...22 SET EXPLODER VIEW DRAWING ...
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Страница 113: ...Revision History Date Revision 2008 7 31 1 First Release ...
Страница 114: ......
Страница 122: ...viii ...
Страница 126: ...Page 4 1 3 Block Diagram T5CL8 1 3 Block Diagram Figure 1 2 Block Diagram ...
Страница 130: ...Page 8 1 4 Pin Names and Functions T5CL8 ...
Страница 155: ...Page 33 T5CL8 ...
Страница 156: ...Page 34 2 Operational Description 2 3 Reset Circuit T5CL8 ...
Страница 186: ...Page 64 5 I O Ports 5 8 Port P7 P77 to P70 T5CL8 ...
Страница 194: ...Page 72 6 Watchdog Timer WDT 6 3 Address Trap T5CL8 ...
Страница 214: ...Page 92 8 16 Bit TimerCounter 1 TC1 8 3 Function T5CL8 ...
Страница 270: ...Page 148 12 Asynchronous Serial interface UART1 12 9 Status Flag T5CL8 ...
Страница 280: ...Page 158 13 Asynchronous Serial interface UART2 13 9 Status Flag T5CL8 ...
Страница 332: ...Page 210 16 Serial Bus Interface I2C Bus Ver D SBI 16 6 Data Transfer of I2C Bus T5CL8 ...
Страница 342: ...Page 220 17 10 bit AD Converter ADC 17 6 Precautions about AD Converter T5CL8 ...
Страница 354: ...Page 232 19 Flash Memory 19 4 Access to the Flash Memory Area T5CL8 ...
Страница 388: ...Page 266 21 Input Output Circuit 21 2 Input Output Ports T5CL8 ...
Страница 397: ...Page 275 T5CL8 23 Package Dimensions LQFP64 P 1010 0 50D Rev 01 Unit mm ...
Страница 398: ...Page 276 23 Package Dimensions T5CL8 ...
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Страница 428: ...TC94B14MFG 2010 01 12 28 Package LQFP80 P 1212 0 50F Weight 0 6 g Typical ...